FULTON VMP Series, Инструкция по установке, эксплуатации и обслуживанию

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VMP-IOMM-2018-2
Fulton Ltd
Page 90
J Series & Electric Steam Boilers
Recommended Water Conditions
Technical Information
Sheet No. 139 Issue 4
Every effort is made to ensure accuracy at time of going to press. However as part of our policy of continual product improvement, we reserve the right to alter specifications without prior notice.
Telephone: +44 (0) 117 972 3322
Fax: +44 (0) 117 972 3358
E-mail: sales@fulton.co.uk
Website: www.fulton.co.uk
Fulton Ltd
5 Fernhurst Road, Fishponds, Bristol.
BS5 7FG. England.
IMPORTANT
It is very important that a strict water management program is followed to ensure trouble free boiler operation.
The following are recommended for feedwater and for boiler water
FEEDWATER (water entering boiler)
pH Value 8.5 to 9.5 tested at room temperature.
Hardness Less than 2.0 ppm in the form of CaCO
3
.
Suspended Solids None
Chloride Less than 50 ppm.
Organic Matter Less than 5 ppm.
Oil None
Minimum Temperature 85 ° C
BOILER WATER (water inside boiler)
pH Value 10.0 to 12.0 tested at room temperature.
Hardness Not detectable.
Suspended Solids Less than 100 ppm.
Chloride Less than 500 ppm.
Oxygen Scavenger, Sodium Sulphite 30 to 70 ppm.
Tannin 30 to 70 ppm
Phosphate 30 to 70 ppm, in the form of PO
4
.
Total Alkalinity Less than 1000 ppm.
Caustic Alkalinity Minimum 300 ppm as CaCO
3
.
Total Dissolved Solids (TDS) Less than 2000 ppm.
Iron Less than 1 ppm.
Silica Less than 150 ppm, in the form of SiO
2
.
Dissolved Oxygen None
!
KEY
mg/kg = Milligrams per Kilogram
CaCO
3
= Calcium Carbonate
PO
4
= Phosphate
SiO
2
= Silicon Dioxide
PPM = Parts Per Million
1 Grain hardness = 17.118 ppm
therefore 70 ppm = 4.10 grains hardness
For practical
purposes ppm
= mg/kg
It is critical that the boiler water pH be
alkaline in the range 10.0 - 12.0.
Daily boiler blowdown is essential to
help prevent formation of deposits
and reduce Total Dissolved Solids
(TDS).
Consult your water treatment specialist
to establish the frequency and duration
of blowdown required to achieve the
required conditions.